Eyelet and hook-setting machine



D. HEINSOHN.

EYELET AND HOOK'SETTING MACHINE.

APPLICATION FILEDJU'NE 30, I915.

Patented Dec. 6, 1921.

Z SHEETS-SHEET L D. HEINSOHN. EYELET AND HOOK SETTING MACHINE.

APPLICATION FILED JUNE 30,1915- Patented Dec. 6, 1921.

2 SHEETS-SHEET 2.

EYELET AND HGOK-SETTING MACHINE.

Application filed .Tune 30, 1915.

Specification of Letters Pa tent.

Patented Dec. 6, 1621.

Serial No. 37,254.

(GRANTED UNDER THE PROVISIONS 013 THE ACT OF MARCH 3, 1921, 41 STAT. L., 1313.)

To all whom it may concern:

Be it known that I, Drrnan llnrnsonn, a subject of the German Empire, and resident of Oberursel on Taunus, Germany, have invented certain new and useful Improvements in Eyelet and Hook Setting Machines, (for which I have filed in Germany utility model applications on Sept. 241-, 1914, Oct. 7, 1914, and Mar. 29, 1915, which have matured, respectively, into Patents No. 617,562, No. 617,825, and No. 628,696,) of which the following is a specification.

The present invention relates to a ma chine for setting eyelets and hooks, in which the tools and guides are elastically supported and are adjustably arranged, whereby the operation of the machine is improved and the wear on the material is reduced. A further advantage consists in the machine being applicable for different sizes of work, the adjustment being effected in a simple and easy manner. Further advan tages of the machine will be described and explained in the following specification.

In the accompanying drawings Figure 1 is a side elevation of the machine.

Fig. 2 is a diagram showing the adjusting and operating lever for the punch.

Fig. 3 is a plan view of Fig. 2 seen in the direction of the arrow 00.

Fig. 4: is a side elevation of the feed-way for the eyelets and hooks.

Fig. 5 is a front view of this feedway or chute.

Fig. 6 is a section along the line A-B in Fig. 5.

Fig. 7 is a section in Fig. 5.

along the line C-D Fig. 8 is a view of the adjusting screw 21 in Fig. 5 for the whole feed-way.

In the body of the machine 1 are disposed in known manner the horn 2, the eyelet supply box 4, the punch 5 and the setting die 3. The punch 5 is fitted to a spindle 6, which is forced downward by means of a lever 9 and an eccentric 10, whereby the punching stroke of the punching tool is produced. The punch spindle is journaled in bearings 7 and 7 The ad- Vance of the punch is effected by a lever 13 which engages with an eye 12 on the spindle 6. At the other side of the lever a guide roller 14 is provided, which rides on an eccentric 15 or the like. The fulcrum of the lever 13 is at 20 in a block, which is pivotable on a pin and displaceable in a slot 1a in lever 13. The block 20 is fitted to a bracket 16, which is displaceable on the spindle 17, which, in the present case, has been made of a square section, while the bracket 16 has a corresponding square bore, with which it is fitted on the spindle 17. The spindle 17 is secured at both ends to the brackets 18 and 18 of the machine body and forms, together with the bracket 16 a bridge for adjustably carrying the operating lever 13. The bracket 16 is displaceable in a known manner by means of a rod gear 19 19 19 19, which may be operated from outside and is accurately adjustable to a scale. By the displacement of the bracket 16 the position of the fulcrum 20 of operating lever 13 is varied, namely in such a manner, that thereby the stroke of the lever relatively to the advance movement proceeding in a horizontal plane, which it imparts to the punch spindle 16, may be varied.

By this new method of arranging the fulcrum of the lever on a bracket 16 and a spindle 17 secured at both ends in the machine body, it is rendered impossible for the bearing to hitch during its displacement. A. further advantage of this arrangement consists in this bridge being secured and detached in a very simple manner to the machine body and from the same, re: spectively.

In Figs. 4r8 the adjustable chute for the feed of the eyelets and hooks is shown, by which it is possible to deal with eyelets and the like of various sizes, whereas with the designs of this kind hitherto disclosed, a separate feed-way had to be provided and exchanged for each size of eyelet and the like. Furthermore provision has been made with the new arrangement, to allow setting the feed-way exactly in the middle axis, after it has been adjusted. Furthermore the lateral displacement of the guide bar can be performed in an absolutely accurate manner by specially designed set-screws.

The feed-way shown is essentially intended for eyelets. The latter slide along the chute 32 in the direction of the arrow .2 in Fig. 5 toward the setting-die, which is disposed in known manner in front of the lower end of the feed-wayr Hitherto a separate feed-way had to be fitted for each kind of eyelets or hooks. This disadvantage is remedied by the present improvement by the lateral guide bar 27 being laterally adjustable, and both guide bars 26, 27 being vertically yieldable, as shall hereinafter be described.

The lateral guide bar 26 is held by means of screws 28 to the casting 31 forming the sliding bed, and is held forced 05 it by springs 29 interposed, so that by turning the holding screws 28 the guide bar 26 can, according to requirement, be approachedto or removed from the casting. The spring 29 will therewith automatically set the distance of the guide bar 26 from thecasting 31. The same arrangement is also provided with the second lateral guide bar 27 only the screw holes 30 in this rail, through which the holding screws 28 pass, are here slotted, so that the guide rail 27 can be laterally displaced. This lateral displacement is obtained by the set screws 33 which are screwed at various points into the casting 31 and engage with a collar 34 in such a manner in the guide bar 27, that, when the screws 33 are turned, the said guide bar is moved by the same (Figs. 4, 5 and 7).

As by the onesided displacement of the guide bar 27 also the middle axis of the chute is shifted, the whole guideway will thereupon have to be readjusted to the middle axis. This is obtained by the set-screw 21 (Figs 5 and 8). The set screw 21 is provided at one end with an easilyoperated head, whereas its other end is threaded at 24, and therewith screwed into a suitable part of the machine body. The shank of screw 21 has a groove turned into it 23, into which the set screw 25 engages, which is screwed through the hub of the feed-way and thereby effects the dogging of the feedway by screw 21. When the screw 21 is turned, the whole feed-way is laterally displaced so that it may be thereby accurately set into the middle axis.

The holding screws 28 are distributed at various points along the length .of the chute, and also the set screws 33 are disposed at various points thereof.

I claim:

In an eyelet and hook setting machine having a die and punch, an adjustable race way comprising a casting, two vertically yieldable guide bars, springs between said casting and said guide bars, holding-screws for regulating the distance between said guide bars and said casting, the screw holes in one of the guide bars through which the holding screws pass being slotted for allowing a lateral displacement of the corresponding guide bar, and set-screws to bring about this lateral displacement.

In testimony whereof Ihave hereunto set my signature in the presence of two subscribing witnesses.

DITMAR 'HEINSOHN.

Witnesses:

JEAN GRUND, CARL GRUND. 

